Steel structure positioning and cutting device and method

Abstract

The application relates to the technical field of steel structure processing, in particular to a steel structure positioning and cutting device, which comprises a shell and a power assembly, an opening is formed through one opposite side of the shell, a cylinder is arranged at the top end of the shell, the cylinder is connected with a cutting assembly, a cleaning unit is arranged in the cutting assembly, the power assembly and a clamping assembly are arranged below the cutting assembly at intervals, and a pipe body is shuttled in the power assembly and the clamping assembly; when the driving unit drives the rotating disc to rotate, the rotating disc drives a plurality of clamping blocks to synchronously move and clamp the pipe body, the waste section can be stably clamped during cutting; a toothed plate is arranged on the outside of the rotating disc and is engaged, when the clamping blocks clamp the pipe body, the toothed plate is driven to move towards the cutting assembly, the toothed plate pushes a protection switch of the cutting assembly and then cutting is carried out, so that the cutting assembly is prevented from being started by mistake; the cold air unit in the cutting assembly generates low-temperature airflow which blows to the contact position of the cutting piece and the steel pipe, impurities are prevented from interfering with cutting, and the cutting piece and the steel pipe are also cooled.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of steel structure processing, in particular to a steel structure positioning and cutting device and method. BACKGROUND

[0002] As the core structure form of prefabricated buildings, steel structure has become the mainstream choice in the field of modern architecture due to its advantages such as lightweight, high strength, excellent seismic performance, short construction period, environmental protection and recyclability. It occupies a dominant position in the fields of industrial plants, super high-rise buildings, large-span stadiums, bridges and new energy facilities. Compared with traditional concrete structures, steel structures can reduce about 80% of construction waste, reduce construction dust and noise pollution, and meet the national "double carbon" goal and the development trend of green buildings.

[0003] Chinese patent document (publication number: CN115722730A) discloses a saw blade positioning structure for steel pipe cutting equipment, which includes a mounting seat, a anti-loosening assembly and a fastening assembly. The mounting seat is a circular seat body structure. The saw blade positioning structure for steel pipe cutting equipment is composed of the mounting seat, the anti-loosening assembly and the fastening assembly. The anti-loosening assembly is composed of a bottom plate, a supporting spring, a supporting plate and a limiting column. The fastening assembly is composed of a fastening seat, a positioning column, a movable seat, a rotating handle, a top column and a return spring. An active slot and a top column slot are formed in the fastening seat. An installation hole, a positioning column slot and a limiting column slot are formed in the saw blade. The limiting column passes through the limiting column slot and is inserted into the top column slot, thereby forming a self-locking effect to prevent the fastening assembly from loosening and ensure the positioning stability of the saw blade.

[0004] In the prior art, there are the following problems:

[0005] 1. Before cutting the steel pipe, the side and the upper part need to be pressed to fix the cutting part, but the front end of the steel pipe is not pressed, so that the waste section of the steel pipe produced during cutting will tear when it approaches the breaking point, resulting in irregular cutting surface.

[0006] 2. If the steel pipe is not completely fixed and the cutting device is started by mistake, the steel pipe will roll or even the cutting blade will burst and fly, which will seriously endanger the working environment and personal safety.

[0007] 3. During cutting, impurities such as sulfur and phosphorus will increase the hardness of the material, causing increased friction and accelerated wear of the cutting blade, even cracking or flying. The temperature rise of the cutting blade and the steel pipe will reduce the cutting efficiency, and the steel pipe will have reduced toughness or residual stress concentration, increasing the risk of cross-section tearing. SUMMARY

[0008] In view of the deficiencies of the prior art, the present application provides a steel structure positioning and cutting device and method; the device drives the rotating disc to rotate through the driving unit, the guide groove of the rotating disc drags the guide rod to move in the radial plane in the radial direction, the clamping blocks at the end of the guide rod move in the radial direction in the sliding groove, the synchronous movement of the clamping blocks quickly clamps or loosens the pipe body, the discarded section can be stably clamped during cutting, and tearing and irregular cross sections of the steel pipe are avoided; the gear plate is arranged on the outside of the rotating disc, when the clamping blocks clamp the pipe body, the gear plate is driven to move towards the cutting assembly, the stroke rod on the side plate of the cutting assembly is pushed to rotate by the gear plate, the protection switch of the cutting assembly is opened, and then cutting is performed, misoperation of starting the cutting assembly is avoided, and the safety of the working environment is ensured; the cylindrical cam is arranged on the rotating shaft of the cutting assembly, the cam groove of the cylindrical cam cooperates with the guide heads on the two sides to make the sliding rod produce reciprocating linear motion in the guide body, the compression cylinder is further pushed to produce compressed air, the compressed air passes through the structures of the branch pipe and the air cover, and low-temperature air flow is blown to the contact position of the cutting blade and the steel pipe, impurities are avoided from interfering with cutting, the cutting blade and the steel pipe are also cooled, and the cutting efficiency and product quality are further ensured.

[0009] In order to achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0010] A steel structure positioning and cutting device comprises a shell, a power assembly for conveying a pipe body, and an opening formed through one opposite side of the shell, a gas cylinder is arranged at the top end of the shell, the gas cylinder is connected with a cutting assembly, a cleaning unit is arranged inside the cutting assembly, the power assembly and a clamping assembly are arranged below the cutting assembly in a spaced manner, and the pipe body shuttles in the power assembly and the clamping assembly; the clamping assembly comprises a vertical plate fixedly arranged at the bottom of the shell, a support seat fixedly arranged on the vertical plate, a rotating disc arranged in the support seat, a driving unit arranged on the outer periphery of the rotating disc, and a plurality of guide grooves arrayed on the rotating disc; an end cover is fixedly arranged at the end of the support seat away from the vertical plate, a sliding groove is formed in the end cover corresponding to the number of the guide grooves, a clamping block is slidably arranged in the sliding groove, a guide rod is fixedly arranged on the clamping block, and the guide rod is slidably arranged in the guide groove; when the driving unit drives the rotating disc to rotate, the guide grooves on the rotating disc drag the guide rods and the clamping blocks to move in the radial direction, and the synchronous movement of the clamping blocks clamps or loosens the pipe body.

[0011] Preferably, the support seat comprises a ring body, a half ring body is fixedly arranged on the outer periphery of the ring body, a first ring channel and a second ring channel are formed in the half ring body, a channel is formed in the rotating disc to facilitate the passage of the pipe body, and a ring sleeve is fixedly arranged at the end of the rotating disc close to the vertical plate and is sleeved on the outer periphery of the ring body.

[0012] Preferably, the driving unit comprises a first motor and a worm, the outer periphery of the rotating disc is provided with worm gear teeth, the first motor is fixedly arranged on the outer periphery of the semi-ring body, the output end of the first motor is connected with the worm, the worm is engaged with the worm gear teeth to drive the rotating disc, and one side of the rotating disc is slidably provided with a toothed plate which is engaged with the worm gear teeth, and the top of the toothed plate is fixedly provided with a top rod.

[0013] Preferably, a stroke rod is arranged on one side of the cutting assembly close to the toothed plate, the stroke rod is rotatably arranged on the side plate through a rotating rod, a rotary switch is arranged on the rotating rod and connected in series in the circuit of the cutting assembly, one side of the stroke rod is connected with a spring, and a scale line is arranged on the side plate close to the top rod.

[0014] Preferably, the power assembly comprises a driving wheel, a driven wheel and a hinged seat, a third motor is fixedly arranged on one side of the hinged seat, a transmission shaft of the third motor is rotatably arranged on the hinged seat, and the driving wheel is arranged on the transmission shaft, a scissor type lifting table is fixedly arranged at the bottom of the hinged seat, the scissor type lifting table is used for adjusting the up-down position of the driving wheel, the driven wheel is arranged on both sides of the shell through a driven shaft, slide rails are arranged on the shell corresponding to the positions of the driven shafts, slide blocks are arranged in the slide rails, pull springs are arranged at the bottom ends of the slide blocks, and both ends of the driven shaft are rotatably arranged in the slide blocks.

[0015] Preferably, the cutting assembly comprises a fixing frame, a second motor, a rotating shaft and a cutting blade, the top of the fixing frame is fixedly connected with the output end of the air cylinder, the second motor is fixedly arranged on the outer side of the fixing frame, the rotating shaft of the second motor is arranged at the bottom of the fixing frame, and the cutting blade is fixedly arranged on the rotating shaft.

[0016] Preferably, the cleaning unit comprises a cylindrical cam and a compression cylinder, the outer periphery of the cylindrical cam is provided with a cam groove, the cylindrical cam is fixedly arranged on the rotating shaft, guide bodies and the compression cylinder are fixedly arranged on both sides of the cylindrical cam, a sliding rod is slidably arranged in the guide body, a guide head is fixedly arranged on one side of the sliding rod close to the cylindrical cam, the guide head is slidably arranged in the cam groove, a piston is fixedly arranged at the end of the sliding rod close to the compression cylinder, the piston is arranged in the compression cylinder, and the output end of the compression cylinder is provided with a cold air unit.

[0017] Preferably, the cold air unit comprises a branch pipe and a gas cover, and a cold air end, the cold air end is arranged at one end of the branch pipe, the inner wall of the cold air end is provided with an inverted taper opening, a cone is arranged in the inner part of the end of the branch pipe away from the cold air end, the gas cover is arranged on the branch pipe close to the cold air end, both ends of the gas cover are fixedly connected with the outer periphery of the branch pipe through an inner ring, a plurality of air holes are arranged on the wall of the branch pipe in the gas cover, and an air inlet is arranged on the gas cover, the air inlet is communicated with the output end of the compression cylinder, and the cold air end extends to the bottom of the cutting blade through a blowing pipe.

[0018] Preferably, the piston is slidably arranged in the compression cylinder, a first one-way valve is arranged on the piston, and a second one-way valve is arranged at the output end of the piston.

[0019] Preferably, the method for cutting by using the device of the present application comprises the following steps:

[0020] S1, placing one end of the pipe body between the driving wheel and the driven wheel, starting the third motor to drive the driving wheel to rotate, and conveying the pipe body to shuttle in the clamping assembly;

[0021] S2, starting the first motor to drive the turntable to rotate through the engagement of the worm with the worm gear tooth belt; the guide groove on the turntable pulls the guide rod and the clamping block to move radially, and the plurality of clamping blocks synchronously clamp the pipe body;

[0022] S3, while the clamping block clamps the pipe body, the worm gear tooth engages the driving tooth plate to move towards the cutting assembly, the top rod on the tooth plate pushes the stroke rod on the side plate of the cutting assembly to rotate, thereby opening the protection switch of the cutting assembly;

[0023] S4, starting the second motor to drive the rotating shaft and the cutting blade to rotate, and then starting the air cylinder to control the cutting assembly to descend to the appropriate position to cut the pipe body;

[0024] S5, during the cutting process, the rotating shaft drives the cylindrical cam to rotate, the cam groove of the cylindrical cam cooperates with the guide head to make the sliding rod produce reciprocating linear motion in the guide body, and the piston reciprocates in the compression cylinder to produce compressed gas; the compressed gas enters the gas cover and enters the branch pipe through the air hole to form vortex to produce cold wind, which blows to the contact position of the cutting blade and the pipe body to achieve impurity removal and cooling;

[0025] S6, after the cutting is completed, the air cylinder is controlled to make the cutting assembly rise, and the first motor is started again to rotate reversely to drive the clamping block to release the pipe body.

[0026] Compared with the prior art, the present application has the following beneficial effects:

[0027] 1、The device is used in the application, the waste section of the steel pipe is quickly fixed, then the protection switch is triggered, the irregular situation caused by the tearing of the section during cutting is avoided, the cutting mode can be started only after the clamping assembly completely fixes the steel pipe, the situation that the steel pipe rolls or even the cutting piece explodes during cutting is avoided, and the safe working environment is ensured; specifically, when the driving unit drives the rotating disc to rotate, the guide groove of the rotating disc drags the guide rod to move in the same radial plane and in the same radial direction, the clamping blocks at the end of the guide rod move in the radial direction in the sliding groove, the synchronous movement of the clamping blocks realizes the quick clamping of the pipe body, the waste section can be stably clamped during cutting, and the tearing and irregular section of the steel pipe are avoided; during the clamping process of the cutting assembly, the outer side of the rotating disc engages the transmission gear plate, drives the gear plate to move towards the cutting assembly, the gear plate drives the stroke rod on the side plate of the cutting assembly to rotate, and the cutting assembly can be cut only after the protection switch is opened, the safety of the working environment is ensured.

[0028] 2、In the device, the motor of the cutting assembly drives the cutting piece to rotate, and at the same time, drives the cylindrical cam to rotate, the cylindrical cam makes the cold air unit produce low-temperature air to blow to the cutting part, which reduces the interference of impurities during cutting, ensures the cutting safety and prolongs the service life of the cutting piece, reduces the temperature of the steel pipe, and avoids the risk of section tearing caused by high temperature, stress concentration and toughness decline; specifically, the cylindrical cam rotates under the drive of the rotating shaft, drives the sliding rods on both sides to reciprocate linearly, the piston at the end of the sliding rod reciprocates in the compression cylinder to produce compressed air, and is introduced into the cold air unit, the air treated by the cold air unit blows to the cutting piece, removes the impurities at the cutting part, and at the same time, the low-temperature air blown out can cool the cutting part; more specifically, the compressed air enters the cyclone part through the air cover, the compressed air enters the branch pipe inside along the tangent direction at high speed after passing through the air hole to form a vortex chamber, and the airflow with relatively low temperature is discharged to the cutting part of the steel pipe through the cold air outlet at the short end of the branch pipe.

[0029] 3、In the application, the scale line is arranged on the side plate of the cutting assembly, the relative position change of the top rod on the gear plate and the scale line is used to confirm whether the pipe body is in the same horizontal plane, and the horizontal degree is adjusted through the lifting platform; specifically, when the outer diameter sizes of the pipe bodies to be cut are different, the clamping assembly and the driving wheel are not in the same horizontal line, which is not conducive to the vertical cutting of the end face of the pipe body, the height adjustment of the driving wheel is realized by using the scissor lifting platform, the pipe body is placed on the horizontal plane, and the vertical cutting is carried out, which is convenient to operate and ensures the product quality. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 It is a three-dimensional schematic view of the overall installation structure of the device.

[0031] Figure 2 is a perspective view of the internal structure of the device of the present application;

[0032] Figure 3 is a perspective view of the assembly structure of the clamping assembly of the device of the present application;

[0033] Figure 4 is a perspective view of the disassembly structure of the clamping assembly of the device of the present application;

[0034] Figure 5 is a perspective view of the assembly structure of the cleaning unit of the device of the present application;

[0035] Figure 6 is a perspective view of the structure of the cooling unit of the device of the present application Figure 1 ;

[0036] Figure 7 is a perspective view of the structure of the cooling unit of the device of the present application Figure 2 ;

[0037] In the figure: housing - 11; pipe body - 12; clamping assembly - 13; cutting assembly - 14; toothed plate - 15; top rod - 16; stroke rod - 17; scale line - 18; air cylinder - 19; vertical plate - 20; half ring body - 21; end cover - 22; first motor - 23; worm - 24; fixed frame - 25; second motor - 26; rotating shaft - 27; cutting blade - 28; cleaning unit - 29; ring body - 30; first ring channel - 31; second ring channel - 32; rotating disc - 33; worm gear tooth - 34; ring sleeve - 35; guide groove - 36; guide rod - 37; clamping block - 38; sliding groove - 39; cylindrical cam - 40; guide body - 41; guide head - 42; compression cylinder - 43; branch pipe - 44; air cover - 45; cooling end - 46; sliding rod - 47; air blowing pipe - 48; waste gas pipe - 49; air hole - 50; cone - 51; inverted taper - 52; piston - 53; first one-way valve - 54; second one-way valve - 55; driving wheel - 56; driven wheel - 57. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present application will be clearly and completely described below in combination with the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments of the present application.

[0039] The contents not described in detail in the specification belong to the prior art known to those skilled in the art. In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" and the like are only used for differentiation in description and cannot be understood as indicating or implying relative importance.

[0040] Figures 1-7 As shown in the figure, a steel structure positioning cutting device includes a shell 11, a power assembly for conveying a pipe body 12, an opening is formed through one side of the shell 11, a gas cylinder 19 is arranged at the top end of the shell 11, the gas cylinder 19 is connected to a cutting assembly 14, a cleaning unit 29 is arranged inside the cutting assembly 14, a power assembly and a clamping assembly 13 are arranged below the cutting assembly 14, and the pipe body 12 shuttles in the power assembly and the clamping assembly 13; the clamping assembly 13 includes a vertical plate 20 fixedly arranged at the bottom of the shell, a support seat is fixedly arranged on the vertical plate 20, a rotating disc 33 is arranged in the support seat, a driving unit is arranged on the outer periphery of the rotating disc, and a plurality of guide grooves 36 are arrayed on the rotating disc 33; an end cover 22 is fixedly arranged at one end of the support seat away from the vertical plate 20, a plurality of sliding grooves 39 corresponding to the number of the guide grooves are arranged on the end cover 22, a clamping block 38 is slidably arranged in each of the sliding grooves 39, and a guide rod 37 is fixedly arranged on the clamping block 38 and slidably arranged in the guide groove 36; when the driving unit drives the rotating disc 33 to rotate, the guide grooves 36 on the rotating disc 33 pull the guide rods 37 and the clamping blocks 38 to move radially, and the plurality of clamping blocks move synchronously to clamp or release the pipe body 12.

[0041] One side of the device shell 11 is formed through an opening, the shell 11 is a rectangular cylindrical structure, the gas cylinder 19 is fixedly arranged at the top end of the shell 11, the output end of the gas cylinder 19 extends into the shell after penetrating through the top plate of the shell 11, wherein the gas cylinder 19 is connected to a gas source outside the gas cylinder 19 and connected to a control end of the device, and the gas cylinder is a prior art, and the specific working principle will not be described in detail here.

[0042] The number of the guide grooves 36 and the sliding grooves 39 is correspondingly arranged, which can be 5 groups, 4 groups or 3 groups, and in the embodiment, the number is 4 groups.

[0043] The end cover 22 is fixedly connected with the half ring body 21 in the device, the rotating disc 33, the ring sleeve 35 and the clamping block 38 are all located between the end cover and the half ring body, when the device is driven by the driving unit to rotate the rotating disc 33, the guide groove 36 of the rotating disc 33 drags the guide rod 37 to move in the same radial plane and in the same radial direction, so that the clamping block 38 at the end of the guide rod 37 moves in the sliding groove 39 in the radial direction, realizing the synchronous movement of the plurality of clamping blocks 38 to quickly clamp or loosen the pipe body 12, and the waste section can be stably clamped during cutting to avoid tearing and irregular cross section of the steel pipe; the gear plate 15 is arranged outside the rotating disc, when the clamping block 38 clamps the pipe body 12, the gear plate 15 is driven to move towards the cutting assembly, the gear plate 15 drives the travel rod 17 on the side plate of the cutting assembly to rotate, the protection switch of the cutting assembly is opened to cut, avoiding misoperation to start the cutting assembly, and ensuring the safety of the working environment; the cylindrical cam 40 is arranged on the rotating shaft 27 of the cutting assembly, the cam groove of the cylindrical cam 40 cooperates with the guide heads 42 on both sides to make the sliding rod 47 produce reciprocating linear motion in the guide body 41, further pushing the compression cylinder 43 to produce compressed air, the compressed air passes through the branch pipe 44 and the air cover 45 and other structures to produce low-temperature airflow to the contact between the cutting blade and the steel pipe, avoiding impurities to interfere with cutting, and also cooling the cutting blade 28 and the steel pipe 27, further ensuring the cutting efficiency and product quality.

[0044] The guide groove 36 is an arc-shaped groove, both ends of the guide groove 36 are located in the same radial plane, and the two ends of the same guide groove 36 are not on the same radius, but the sliding groove 39 is located in the same radial plane and on the same radius; when the rotating disc 33 rotates, the guide groove 36 drives the guide rod 37 and the clamping block 38 to displace in the same radial plane and on the same radius, realizing clamping and loosening of the plurality of clamping blocks 38.

[0045] Further, the support seat comprises a ring body 30, the outer periphery of the ring body 30 is fixedly provided with the half ring body 21, and the first ring channel 31 and the second ring channel 32 are arranged in the half ring body 21; the rotating disc 33 is provided with a channel for the pipe body to pass through, and the ring sleeve 35 is fixedly arranged on one end of the rotating disc 33 close to the vertical plate, and the ring sleeve 35 is sleeved on the outer periphery of the ring body 30.

[0046] Referring to Figure 4The end cover 22 is fixedly connected with the half ring body 21 in the device, the rotating disc 33, the ring sleeve 35 and the clamping block 38 are located between the end cover and the half ring body; the inner wall of the ring sleeve 35 is sleeved on the ring body 30, the outer wall of the ring sleeve 35 is located in the first ring channel 31, the outer wall of the rotating disc 33 and the worm gear tooth 34 are located in the second ring channel 32; the vertical plate 20, the rotating disc 33, the ring body 30 and the end cover 22 are all provided with a hole through which the pipe body 12 passes, when the rotating disc 33 is driven to rotate by the driving unit, the guide groove 36 of the rotating disc 33 drags the guide rod 37 to move in the same radial plane and in the same radial direction, so that the clamping block 38 at the end of the guide rod 37 moves in the radial direction in the sliding groove 39, the synchronous movement of the plurality of clamping blocks 38 realizes the quick clamping or loosening of the pipe body 12, the waste section can be stably clamped during cutting, and tearing and irregular cross sections of the steel pipe are avoided.

[0047] Further, the driving unit comprises a first motor 23 and a worm 24, the outer periphery of the rotating disc 33 is provided with a worm gear tooth 34, the first motor 23 is fixedly arranged on the outer periphery of the half ring body 21, the output end of the first motor 23 is connected with the worm 24, the worm 24 meshes with the worm gear tooth 34 to drive the rotating disc 33; one side of the rotating disc 33 is slidably provided with a toothed plate 15, the toothed plate 15 meshes with the worm gear tooth 34, and the top of the toothed plate 15 is fixedly provided with a top rod 16. Further, a stroke rod 17 is arranged on one side plate of the cutting assembly 14 close to the toothed plate 15, the stroke rod 17 is rotatably arranged on the side plate through a rotating rod, a rotary switch is arranged on the rotating rod, and one side of the stroke rod 17 is connected with a spring; a scale line 18 is arranged on the side plate close to the top rod 16.

[0048] Referring to Figure 1 , Figure 2 and Figure 3 , one half of the rotating disc 33 and the worm gear tooth 34 are located outside, and the worm gear tooth 34 located outside meshes with the toothed plate 15, when the rotating disc 33 rotates to drive the clamping block 38 to clamp the pipe body 12 (the rotating disc 33 rotates counterclockwise in Figure 4 ), the toothed plate 15 is driven to move towards the cutting assembly, the top rod 16 at the top of the toothed plate 15 moves upwards, the top rod 16 pushes the stroke rod 17 on the side plate of the cutting assembly to rotate, the protection switch of the cutting assembly is turned on to cut, misoperation to start the cutting assembly is avoided, and the safety of the working environment is ensured.

[0049] The rotary switch is used to control the start and stop of the cutting assembly, when the pipe body 12 is clamped, the top rod 16 on the toothed plate 15 is moved upwards to push the rotary switch, the cutting assembly is started, and the device is protected; when the clamping block is in a relaxed state, the top rod 16 on the toothed plate 15 is located away from the stroke rod 17, under the action of the spring, the rotary switch is in an initial position, the cutting assembly is in an open circuit state, and misoperation to start is avoided; the rotary switch is connected in series in the circuit of the cutting assembly, and protection is formed for the start of cutting.

[0050] It should be noted that the knob switch can be selected as LA38-11X / 21 type or similar series products, and the knob switch can be commercially available, which is prior art, and the working principle is not described in detail here.

[0051] Further, the power assembly comprises a driving wheel 56, a driven wheel 57 and a hinged seat (not shown in the figure), one side of the hinged seat is fixedly provided with a third motor (not shown in the figure), the transmission shaft of the third motor is rotatably installed on the hinged seat, the driving wheel 56 is installed on the transmission shaft, the driving wheel 56 is driven to rotate by starting the third motor, the pipe body 12 is transported to the front end until the appropriate size; the bottom of the hinged seat is fixedly provided with a scissor lifting platform (not shown in the figure), which is used to adjust the up-down position of the driving wheel 56; the driven wheel 57 is installed on both sides of the shell 11 through a driven shaft, the shell 11 is provided with a sliding rail corresponding to the position of the driven shaft, a sliding block is installed in the sliding rail, a tension spring is arranged at the bottom end of the sliding block, and the both ends of the driven shaft are rotatably installed in the sliding block.

[0052] Referring to Figure 2 , the tension spring generates a force to make the driven wheel 57 and the driving wheel 56 form a close force, so as to clamp the pipe body 12, which is beneficial to the subsequent stable cutting; when the outer diameter size of the pipe body 12 changes, the clamping assembly 13 is used for clamping, the position of the clamping assembly 13 and the position of the driving wheel 56 are not on the same horizontal line, which is not conducive to the vertical cutting of the end face of the pipe body 12; it can be determined from the relative position of the top rod 16 and the scale line 18 that the front and rear positions of the pipe body 12 are not on the same horizontal plane, the height of the driving wheel 56 is adjusted by using the scissor lifting platform, the pipe body 12 is placed on the horizontal plane, which is beneficial to the vertical cutting and ensures the product quality.

[0053] The scissor lifting platform can be selected as a PT-SD1703M lifting platform of a PDV brand or a series product. The scissor lifting platform can be commercially available, which is prior art, and the working principle is not described in detail here.

[0054] Further, the cutting assembly 14 comprises a fixed frame 25, a second motor 26, a rotating shaft 27 and a cutting blade 28, the top of the fixed frame 25 is fixedly connected with the output end of the air cylinder 19, the outer side of the fixed frame 25 is fixedly installed with the second motor 26, the rotating shaft 27 of the second motor 26 is installed at the bottom of the fixed frame 25, and the cutting blade 28 is fixedly arranged on the rotating shaft 27.

[0055] Referring to Figure 2 , the second motor 26 is used to control the rotation of the rotating shaft 27 and drive the cutting blade 28 to rotate; the air cylinder 19 is used to adjust the up-down movement of the cutting assembly and control the cutting blade 28 to move close to the pipe body 12 for cutting.

[0056] It should be noted that the support structure is arranged below the cutting piece 28 and deviated from the clamping assembly, which supports the pipe body 12 and facilitates smooth cutting. The support structure is not shown in the drawings.

[0057] Further, the cleaning unit 29 comprises a cylindrical cam 40 and a compression cylinder 43. The cylindrical cam 40 has a cam groove on its outer periphery, and is fixed to the rotating shaft 27. The guiding body 41 and the compression cylinder 43 are arranged on both sides of the cylindrical cam 40. The guiding body 41 is slidably arranged with a slide rod 47. The guiding head 42 is fixed to one side of the slide rod 47 close to the cylindrical cam 40, and is slidably arranged in the cam groove. The piston 53 is fixed to one end of the slide rod 47 close to the compression cylinder 43, and is arranged in the compression cylinder 43. The output end of the compression cylinder 43 is provided with a cold air unit.

[0058] Referring to Figure 5 , the guiding head 42 on the slide rod 47 is slidably arranged in the cam groove. When the second motor 26 is started to drive the rotating shaft 27 to rotate, the cylindrical cam 40 is driven to rotate, and the cam groove drives the guiding head 42 and the slide rod 47 to move reciprocatingly and linearly. The piston and the two one-way valves in the compression cylinder 43 cooperate to suck external air, compress it, and then introduce it into the cold air unit. The air treated by the cold air unit is blown to the cutting piece to remove impurities and cool the cutting part, thereby ensuring product quality and tool service life.

[0059] Further, the cold air unit comprises a branch pipe 44, an air cover 45, and a cold air end 46. The cold air end 46 is located at one end of the branch pipe 44. The inner wall of the cold air end 46 is provided with an inverted taper 52. The inner part of the end of the branch pipe 44 away from the cold air end 46 is provided with a taper 51. The air cover 45 is arranged on the branch pipe 44 and close to the cold air end 46. The two ends of the air cover 45 are fixedly connected to the outer periphery of the branch pipe 44 through an inner ring. A plurality of air holes 50 are arranged on the wall of the branch pipe in the air cover 45. The air cover 45 is provided with an air inlet. The air inlet is communicated with the output end of the compression cylinder 43. The cold air end 46 extends to the bottom of the cutting piece 28 through a blowing pipe 48.

[0060] Referring to Figure 5 and Figure 6The compressed air is injected into the air inlet of the air cover 45 and enters the cyclone part. The cyclone part is formed by a plurality of air holes 50 provided on the branch pipe 44, and the air holes 50 are formed on the pipe wall of the branch pipe 44 at an inclined angle of 30-50 degrees. When the compressed air expands through the nozzle with a specific inclined angle, the compressed air enters the vortex chamber formed in the branch pipe 44 at a high speed along the tangent direction. In the vortex chamber, the air flow is subjected to vortex transformation during high-speed rotation, so that the air flow is separated into two air flows with different total temperatures. One of the air flows is located at the center position of the vortex chamber and has a lower temperature, and the other air flow is located at the outer region and has a higher temperature. The air flow with the higher temperature is discharged from the long end of the branch pipe 44, and the air flow with the lower temperature is discharged from the cold air outlet 46 at the short end of the branch pipe 44. In this way, the original compressed air is effectively separated into cold and hot air flows.

[0061] It should be noted that the long end of the branch pipe 44 is connected to the exhaust pipe 49, and the air with the higher temperature is discharged to the outside of the device.

[0062] Further, the piston 53 is slidingly installed in the compression cylinder 43, the first one-way valve 54 is arranged on the piston 53, and the second one-way valve 55 is arranged at the output end of the piston 53.

[0063] Referring to Figure 7 The first one-way valve 54 only allows the air outside the compression cylinder 43 to enter the inside of the compression cylinder, and the second one-way valve 55 only allows the air inside the compression cylinder 43 to be discharged to the outside. The cooperation of the two one-way valves allows the external air to be sucked in, compressed and introduced into the cold air unit.

[0064] The method for cutting by using the device of the present application comprises the following steps:

[0065] S1, one end of the pipe body 12 is arranged between the driving wheel 56 and the driven wheel 57, the third motor is started to drive the driving wheel 56 to rotate, and the pipe body 12 is conveyed to shuttle in the clamping assembly;

[0066] S2, the first motor 23 is started, the worm 24 engages the worm gear teeth 34 to drive the rotating disc 33 to rotate, the guide groove 36 on the rotating disc 33 drags the guide rod 37 and the clamping block 38 to move along the radial direction, and a plurality of clamping blocks 38 synchronously clamp the pipe body 12;

[0067] S3, when the clamping block 38 clamps the pipe body 12, the worm gear teeth 34 engage the toothed plate 15 to move towards the cutting assembly 14, the top rod 16 on the toothed plate 15 pushes the stroke rod 17 on the side plate of the cutting assembly 14 to rotate, so as to open the protection switch of the cutting assembly 14;

[0068] S4, start the second motor 26, drive the rotating shaft 27 and the cutting blade 28 to rotate, and then start the air cylinder 19 to control the cutting assembly 14 to descend to the appropriate position to cut the pipe body 12;

[0069] S5, during the cutting process, the rotating shaft 27 drives the cylindrical cam 40 to rotate, the cam groove of the cylindrical cam 40 cooperates with the guide head 42 to make the slide rod 47 produce reciprocating linear motion in the guide body 41, push the piston 53 to reciprocate in the compression cylinder 43 to produce compressed gas; the compressed gas enters the gas cover 45, and enters the branch pipe 44 through the air hole 50 to form a vortex, the cold air generated by the vortex is blown to the contact position of the cutting blade 28 and the pipe body 12 through the air blowing pipe 48; the cold air flow carries out cooling and cleaning treatment on the cutting position, removes the impurities generated in the cutting process, and simultaneously cools the steel pipe cutting position, prevents the steel pipe from being torn and having an irregular cross section;

[0070] S6, after the cutting is completed, the air cylinder 19 is controlled to make the cutting assembly 14 ascend, and the first motor 23 is started again to rotate reversely to drive the clamping block 38 to loosen the pipe body 12, and the pipe body 12 after the cutting is completed is taken out.

[0071] The technical concept of the present application is illustrated by the above-mentioned embodiments, but the present application is not limited to the above-mentioned embodiments, that is, it does not mean that the present application must rely on the above-mentioned embodiments to be implemented. It should be understood by those skilled in the art that the related improvements of the present application are within the protection scope and disclosure scope of the present application.

Claims

1. A steel structure positioning and cutting device, comprising a housing (11) and a power assembly for conveying a pipe (12), wherein an opening is formed through one opposite side of the housing (11), characterized in that, A cylinder (19) is provided at the top of the housing (11), and the cylinder (19) is connected to the cutting assembly (14). A cleaning unit (29) is provided inside the cutting assembly (14). A power assembly and a clamping assembly (13) are arranged at intervals below the cutting assembly (14). The tube (12) passes through the power assembly and the clamping assembly (13). The clamping assembly (13) includes a vertical plate (20) fixed to the bottom of the housing. A support base is fixed on the vertical plate (20). A turntable (33) is provided inside the support base. A drive unit is provided on the outer periphery of the turntable. A number of arrays are opened on the turntable (33). A guide groove (36); an end cap (22) is fixed at the end of the support base away from the vertical plate (20), and a sliding groove (39) is opened on the end cap (22) corresponding to the number of guide grooves. A clamping block (38) is slidably arranged in the sliding groove (39), and a guide rod (37) is fixed on the clamping block (38). The guide rod (37) is slidably installed inside the guide groove (36); when the drive unit drives the turntable (33) to rotate, the guide groove (36) on the turntable (33) pulls the guide rod (37) and the clamping block (38) to move radially, and several clamping blocks move synchronously to clamp or loosen the tube body (12); The cutting assembly (14) includes a fixed frame (25), a second motor (26), a rotating shaft (27), and a cutting blade (28). The top of the fixed frame (25) is fixedly connected to the output end of the cylinder (19). The second motor (26) is fixedly installed on the outside of the fixed frame (25). The rotating shaft (27) of the second motor (26) is installed at the bottom of the fixed frame (25), and the cutting blade (28) is fixed on the rotating shaft (27). The cleaning unit (29) includes a cylindrical cam (40) and a compression cylinder (43). The outer periphery of the cylindrical cam (40) has a cam groove. The cylindrical cam is fixed on the rotating shaft (27). Guide bodies (41) and compression cylinders (43) are fixed on both sides of the cylindrical cam (40). A slide rod (47) is slidably arranged in the guide body (41). A guide head (42) is fixed on the side of the slide rod (47) near the cylindrical cam (40). The guide head (42) is slidably installed in the cam groove. A piston (53) is fixed at one end of the slide rod (47) near the compression cylinder (43). The piston (53) is installed inside the compression cylinder (43). A cold air unit is provided at the output end of the compression cylinder (43). The cold air unit includes a branch pipe (44), an air hood (45), and a cold air end (46). The cold air end (46) is located at one end of the branch pipe (44). The inner wall of the cold air end (46) is provided with an inverted conical opening (52). The end of the branch pipe (44) away from the cold air end (46) is provided with a cone (51). The air hood (45) is sleeved on the branch pipe (44) and is located close to the cold air end (46). The two ends of the air hood (45) are fixedly connected to the outer periphery of the branch pipe (44) through an inner ring. Several ventilation holes (50) are opened on the wall of the branch pipe located inside the air hood (45). The air hood (45) is provided with a ventilation port. The ventilation port is connected to the output end of the compression cylinder (43). The cold air end (46) extends to the bottom of the cutting blade (28) through an air blowing pipe (48). The piston (53) is slidably mounted inside the compression cylinder (43), and a first check valve (54) is provided on the piston (53), and a second check valve (55) is provided at the output end of the piston (53).

2. The steel structure positioning and cutting device according to claim 1, characterized in that, The support base includes a ring body (30), a semi-ring body (21) is fixed on the outer periphery of the ring body (30), and a first ring channel (31) and a second ring channel (32) are opened inside the semi-ring body (21); a channel is opened on the turntable (33) to facilitate the passage of the pipe body, and a ring sleeve (35) is fixed on one end of the turntable (33) near the vertical plate, and the ring sleeve (35) is fitted on the outer periphery of the ring body (30).

3. The steel structure positioning and cutting device according to claim 2, characterized in that, The drive unit includes a first motor (23) and a worm (24). The outer periphery of the turntable (33) is provided with worm gear teeth (34). The first motor (23) is fixed on the outer periphery of the semi-ring (21). The output end of the first motor (23) is connected to the worm (24). The worm (24) meshes with the worm gear teeth (34) and drives the turntable (33). A toothed plate (15) is slidably provided on one side of the turntable (33). The toothed plate (15) meshes with the worm gear teeth (34). A top rod (16) is fixed on the top of the toothed plate (15).

4. The steel structure positioning and cutting device according to claim 3, characterized in that, A stroke rod (17) is provided on one side plate of the cutting assembly (14) near the toothed plate (15). The stroke rod (17) is rotatably mounted on the side plate via a rotating rod. A rotary switch is provided on the rotating rod and connected in series in the circuit of the cutting assembly. A spring is connected to one side of the stroke rod (17). A scale line (18) is provided on the side plate near the top rod (16).

5. The steel structure positioning and cutting device according to claim 1, characterized in that, The power assembly includes a drive wheel (56), a driven wheel (57), and a hinge seat. A third motor is fixed on one side of the hinge seat, and the drive shaft of the third motor is rotatably mounted on the hinge seat. The drive wheel (56) is mounted on the drive shaft. A scissor lift is fixed at the bottom of the hinge seat. The scissor lift is used to adjust the up and down position of the drive wheel (56). The driven wheel (57) is mounted on both sides of the housing (11) through a driven shaft. A slide rail is set on the housing (11) corresponding to the position of the driven shaft. A slider is installed in the slide rail. A tension spring is set at the bottom end of the slider. The two ends of the driven shaft are rotatably mounted in the slider.

6. A method for cutting using the steel structure positioning and cutting device according to any one of claims 1-5, characterized in that, Includes the following steps: S1. Place one end of the tube (12) between the driving wheel (56) and the driven wheel (57), start the third motor to drive the driving wheel (56) to rotate, and transport the tube (12) through the clamping assembly; S2. Start the first motor (23), and drive the turntable (33) to rotate through the worm gear (24) meshing with the worm wheel teeth (34); the guide groove (36) on the turntable (33) pulls the guide rod (37) and the clamping block (38) to move radially, and several clamping blocks (38) clamp the tube body (12) simultaneously; S3. When the clamping block (38) clamps the tube body (12), the worm gear (34) meshes with the drive plate (15) to move closer to the cutting assembly (14). The push rod (16) on the plate (15) pushes the stroke rod (17) on the side plate of the cutting assembly (14) to rotate, thereby opening the protection switch of the cutting assembly (14). S4. Start the second motor (26) to drive the rotating shaft (27) and the cutting blade (28) to rotate, and then start the cylinder (19) to control the cutting assembly (14) to descend to the appropriate position to cut the tube (12); S5. During the cutting process, the rotating shaft (27) drives the cylindrical cam (40) to rotate. The cam groove of the cylindrical cam (40) cooperates with the guide head (42) to make the slide rod (47) reciprocate linearly in the guide body (41), which pushes the piston (53) to reciprocate in the compression cylinder (43) to generate compressed gas. The compressed gas enters the gas hood (45) and enters the branch pipe (44) through the vent (50) to form a vortex and generate cold air. The cold air blows to the contact point between the cutting blade (28) and the pipe body (12) to achieve impurity removal and cooling. S6. After the cutting is completed, control the cylinder (19) to raise the cutting assembly (14), and start the first motor (23) again to rotate in the opposite direction, driving the clamping block (38) to release the tube body (12).

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